247 lines
8.4 KiB
Python
247 lines
8.4 KiB
Python
# Test the module type
|
|
import unittest
|
|
import weakref
|
|
from test.support import run_unittest, gc_collect
|
|
from test.script_helper import assert_python_ok
|
|
|
|
import sys
|
|
ModuleType = type(sys)
|
|
|
|
class FullLoader:
|
|
@classmethod
|
|
def module_repr(cls, m):
|
|
return "<module '{}' (crafted)>".format(m.__name__)
|
|
|
|
class BareLoader:
|
|
pass
|
|
|
|
|
|
class ModuleTests(unittest.TestCase):
|
|
def test_uninitialized(self):
|
|
# An uninitialized module has no __dict__ or __name__,
|
|
# and __doc__ is None
|
|
foo = ModuleType.__new__(ModuleType)
|
|
self.assertTrue(foo.__dict__ is None)
|
|
self.assertRaises(SystemError, dir, foo)
|
|
try:
|
|
s = foo.__name__
|
|
self.fail("__name__ = %s" % repr(s))
|
|
except AttributeError:
|
|
pass
|
|
self.assertEqual(foo.__doc__, ModuleType.__doc__)
|
|
|
|
def test_unintialized_missing_getattr(self):
|
|
# Issue 8297
|
|
# test the text in the AttributeError of an uninitialized module
|
|
foo = ModuleType.__new__(ModuleType)
|
|
self.assertRaisesRegex(
|
|
AttributeError, "module has no attribute 'not_here'",
|
|
getattr, foo, "not_here")
|
|
|
|
def test_missing_getattr(self):
|
|
# Issue 8297
|
|
# test the text in the AttributeError
|
|
foo = ModuleType("foo")
|
|
self.assertRaisesRegex(
|
|
AttributeError, "module 'foo' has no attribute 'not_here'",
|
|
getattr, foo, "not_here")
|
|
|
|
def test_no_docstring(self):
|
|
# Regularly initialized module, no docstring
|
|
foo = ModuleType("foo")
|
|
self.assertEqual(foo.__name__, "foo")
|
|
self.assertEqual(foo.__doc__, None)
|
|
self.assertIs(foo.__loader__, None)
|
|
self.assertIs(foo.__package__, None)
|
|
self.assertIs(foo.__spec__, None)
|
|
self.assertEqual(foo.__dict__, {"__name__": "foo", "__doc__": None,
|
|
"__loader__": None, "__package__": None,
|
|
"__spec__": None})
|
|
|
|
def test_ascii_docstring(self):
|
|
# ASCII docstring
|
|
foo = ModuleType("foo", "foodoc")
|
|
self.assertEqual(foo.__name__, "foo")
|
|
self.assertEqual(foo.__doc__, "foodoc")
|
|
self.assertEqual(foo.__dict__,
|
|
{"__name__": "foo", "__doc__": "foodoc",
|
|
"__loader__": None, "__package__": None,
|
|
"__spec__": None})
|
|
|
|
def test_unicode_docstring(self):
|
|
# Unicode docstring
|
|
foo = ModuleType("foo", "foodoc\u1234")
|
|
self.assertEqual(foo.__name__, "foo")
|
|
self.assertEqual(foo.__doc__, "foodoc\u1234")
|
|
self.assertEqual(foo.__dict__,
|
|
{"__name__": "foo", "__doc__": "foodoc\u1234",
|
|
"__loader__": None, "__package__": None,
|
|
"__spec__": None})
|
|
|
|
def test_reinit(self):
|
|
# Reinitialization should not replace the __dict__
|
|
foo = ModuleType("foo", "foodoc\u1234")
|
|
foo.bar = 42
|
|
d = foo.__dict__
|
|
foo.__init__("foo", "foodoc")
|
|
self.assertEqual(foo.__name__, "foo")
|
|
self.assertEqual(foo.__doc__, "foodoc")
|
|
self.assertEqual(foo.bar, 42)
|
|
self.assertEqual(foo.__dict__,
|
|
{"__name__": "foo", "__doc__": "foodoc", "bar": 42,
|
|
"__loader__": None, "__package__": None, "__spec__": None})
|
|
self.assertTrue(foo.__dict__ is d)
|
|
|
|
def test_dont_clear_dict(self):
|
|
# See issue 7140.
|
|
def f():
|
|
foo = ModuleType("foo")
|
|
foo.bar = 4
|
|
return foo
|
|
gc_collect()
|
|
self.assertEqual(f().__dict__["bar"], 4)
|
|
|
|
def test_clear_dict_in_ref_cycle(self):
|
|
destroyed = []
|
|
m = ModuleType("foo")
|
|
m.destroyed = destroyed
|
|
s = """class A:
|
|
def __init__(self, l):
|
|
self.l = l
|
|
def __del__(self):
|
|
self.l.append(1)
|
|
a = A(destroyed)"""
|
|
exec(s, m.__dict__)
|
|
del m
|
|
gc_collect()
|
|
self.assertEqual(destroyed, [1])
|
|
|
|
def test_weakref(self):
|
|
m = ModuleType("foo")
|
|
wr = weakref.ref(m)
|
|
self.assertIs(wr(), m)
|
|
del m
|
|
gc_collect()
|
|
self.assertIs(wr(), None)
|
|
|
|
def test_module_repr_minimal(self):
|
|
# reprs when modules have no __file__, __name__, or __loader__
|
|
m = ModuleType('foo')
|
|
del m.__name__
|
|
self.assertEqual(repr(m), "<module '?'>")
|
|
|
|
def test_module_repr_with_name(self):
|
|
m = ModuleType('foo')
|
|
self.assertEqual(repr(m), "<module 'foo'>")
|
|
|
|
def test_module_repr_with_name_and_filename(self):
|
|
m = ModuleType('foo')
|
|
m.__file__ = '/tmp/foo.py'
|
|
self.assertEqual(repr(m), "<module 'foo' from '/tmp/foo.py'>")
|
|
|
|
def test_module_repr_with_filename_only(self):
|
|
m = ModuleType('foo')
|
|
del m.__name__
|
|
m.__file__ = '/tmp/foo.py'
|
|
self.assertEqual(repr(m), "<module '?' from '/tmp/foo.py'>")
|
|
|
|
def test_module_repr_with_loader_as_None(self):
|
|
m = ModuleType('foo')
|
|
assert m.__loader__ is None
|
|
self.assertEqual(repr(m), "<module 'foo'>")
|
|
|
|
def test_module_repr_with_bare_loader_but_no_name(self):
|
|
m = ModuleType('foo')
|
|
del m.__name__
|
|
# Yes, a class not an instance.
|
|
m.__loader__ = BareLoader
|
|
loader_repr = repr(BareLoader)
|
|
self.assertEqual(
|
|
repr(m), "<module '?' ({})>".format(loader_repr))
|
|
|
|
def test_module_repr_with_full_loader_but_no_name(self):
|
|
# m.__loader__.module_repr() will fail because the module has no
|
|
# m.__name__. This exception will get suppressed and instead the
|
|
# loader's repr will be used.
|
|
m = ModuleType('foo')
|
|
del m.__name__
|
|
# Yes, a class not an instance.
|
|
m.__loader__ = FullLoader
|
|
loader_repr = repr(FullLoader)
|
|
self.assertEqual(
|
|
repr(m), "<module '?' ({})>".format(loader_repr))
|
|
|
|
def test_module_repr_with_bare_loader(self):
|
|
m = ModuleType('foo')
|
|
# Yes, a class not an instance.
|
|
m.__loader__ = BareLoader
|
|
module_repr = repr(BareLoader)
|
|
self.assertEqual(
|
|
repr(m), "<module 'foo' ({})>".format(module_repr))
|
|
|
|
def test_module_repr_with_full_loader(self):
|
|
m = ModuleType('foo')
|
|
# Yes, a class not an instance.
|
|
m.__loader__ = FullLoader
|
|
self.assertEqual(
|
|
repr(m), "<module 'foo' (crafted)>")
|
|
|
|
def test_module_repr_with_bare_loader_and_filename(self):
|
|
# Because the loader has no module_repr(), use the file name.
|
|
m = ModuleType('foo')
|
|
# Yes, a class not an instance.
|
|
m.__loader__ = BareLoader
|
|
m.__file__ = '/tmp/foo.py'
|
|
self.assertEqual(repr(m), "<module 'foo' from '/tmp/foo.py'>")
|
|
|
|
def test_module_repr_with_full_loader_and_filename(self):
|
|
# Even though the module has an __file__, use __loader__.module_repr()
|
|
m = ModuleType('foo')
|
|
# Yes, a class not an instance.
|
|
m.__loader__ = FullLoader
|
|
m.__file__ = '/tmp/foo.py'
|
|
self.assertEqual(repr(m), "<module 'foo' (crafted)>")
|
|
|
|
def test_module_repr_builtin(self):
|
|
self.assertEqual(repr(sys), "<module 'sys' (built-in)>")
|
|
|
|
def test_module_repr_source(self):
|
|
r = repr(unittest)
|
|
starts_with = "<module 'unittest' from '"
|
|
ends_with = "__init__.py'>"
|
|
self.assertEqual(r[:len(starts_with)], starts_with,
|
|
'{!r} does not start with {!r}'.format(r, starts_with))
|
|
self.assertEqual(r[-len(ends_with):], ends_with,
|
|
'{!r} does not end with {!r}'.format(r, ends_with))
|
|
|
|
def test_module_finalization_at_shutdown(self):
|
|
# Module globals and builtins should still be available during shutdown
|
|
rc, out, err = assert_python_ok("-c", "from test import final_a")
|
|
self.assertFalse(err)
|
|
lines = out.splitlines()
|
|
self.assertEqual(set(lines), {
|
|
b"x = a",
|
|
b"x = b",
|
|
b"final_a.x = a",
|
|
b"final_b.x = b",
|
|
b"len = len",
|
|
b"shutil.rmtree = rmtree"})
|
|
|
|
def test_descriptor_errors_propogate(self):
|
|
class Descr:
|
|
def __get__(self, o, t):
|
|
raise RuntimeError
|
|
class M(ModuleType):
|
|
melon = Descr()
|
|
self.assertRaises(RuntimeError, getattr, M("mymod"), "melon")
|
|
|
|
# frozen and namespace module reprs are tested in importlib.
|
|
|
|
|
|
def test_main():
|
|
run_unittest(ModuleTests)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|